Loctite 5770 Thread Sealant High Strength Ultra High Temperature 50ml

Loctite 5770 seals metal threaded pipes, ideal for steel joints. High-temp, high-pressure resistant. Prevents leaks & loosening from vibration.

$104.08 Inc. GST

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SKU: LOCTITE-5770-050 Category: Tags: , Brand:

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Loctite 5770 Thread Sealant – High Strength, Ultra High Temperature (50 mL)

Engineered for industrial reliability, built for extreme conditions.

When it comes to securing metal threaded pipes and fittings, you need a sealant that doesn’t just work—it lasts. Loctite® 5770 is a premium, high-strength thread sealant paste designed specifically for industrial applications. Whether you’re working in manufacturing, power generation, oil & gas, or heavy engineering, 5770 delivers unbeatable sealing performance—especially in high temperature and high-pressure environments.

Formulated as an off-white to purplish-gray dimethacrylate ester acrylic paste, Loctite 5770 locks and seals metal joints with precision. It prevents loosening and leakage caused by shock, vibration, and thermal cycling, ensuring that your systems stay secure and leak-free under the most demanding conditions.

Why Choose Loctite 5770?

  • Exceptional Seal Integrity: Resists loosening and leakage caused by vibration, pressure surges, and temperature changes.
  • High Strength & Durability: Ideal for permanent, heavy-duty sealing of steel metal joints.
  • Extreme Environment Ready: Designed for ultra high temperature and high-pressure applications without performance loss.
  • Versatile Industrial Use: Perfect for industries where reliability is critical—automotive, aerospace, manufacturing, and more.

When failure is not an option, trust Loctite 5770 to deliver secure, long-lasting sealing in even the harshest operational conditions.


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Loctite thread lockers and thread sealants are essential products used in various industries for reliable and secure fastening applications. Thread lockers, such as Loctite Blue, Red, and Green, prevent threaded assemblies from loosening due to vibration or shock. They create a strong bond between fasteners, enhancing overall equipment reliability. These thread lockers are resistant to chemicals, temperature variations, and corrosion, making them suitable for a wide range of applications, including automotive, aerospace, plumbing, agriculture and manufacturing.

LOCTITE 5770 THREAD SEALANT – HIGH STRENGTH – ULTRA HIGH TEMPERATURE 50mL

Sealant paste designed for metal threaded pipes and fittings in industrial applications which is particularly suitable for sealing steel metal joints.
LOCTITE® 5770 is an off-white to purplish gray dimethacrylate ester acrylic sealant paste designed for locking and sealing metal threaded pipes and fittings in industrial applications. It prevents loosening and leakage from shock and vibration and is particularly suitable for sealing steel metal joints where high temperature and high pressure resistance is required.

  • Prevents loosening and leakage from shock and vibration
  • Designed for locking and sealing metal threaded pipes and fittings in industrial applications
  • Particularly suitable for sealing steel metal joints where high temperature and high pressure resistance is required
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